HYDRO29664

• Permit No: C1994082
• IBM Index Class Name: Hydrology
• Doc Date: 4/23/1998
• Doc Name: 1st Qtr 1998 Sediment Pond Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PBRIODIC INSPECTION FORN
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Michael altavilla DATE: i13./23/98
NPDES I.D. NO.: CO-0000221 D.P. 0 11
FACILITY CONFIGURATION: - oae-Valt y Pond DATE LAST INSPECTION: ~/~7/97
SITE NAME: Pond 8011 LOCATION: NF.S{ cWi~,$p_c. 16 TSN R87W
MINE NAME: Yoast Mine(c_eneca Coal C o) LOCATION: 8-6 mi. RE of Haydn, c0
MINE I.D. NO.: (' T.Rn P mit Ho. -9 4-08 OWNER'S REP.: Brad Brown, [:Pn Mqr
1.
2.
3.
4.
5.
6.
Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of elope: 3.0:1 upstream, 2.8:1 downstream
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"BOile" beneath stream or ponded water:
7. Cracks or scarps on crest:
8. Cracks or scarps on elope:
9.
10.
11.
12.
13.
14.
15.
16.
17.
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
*Eroaion of toe:
*water impounded against toe:
Existing embankment freeboard:
Increase Decrease in water level: No change
Cracks, bulging, or erosion on upstream face:
Visible sumps or sinkholes in Blurry surface:
18. *Clogging
spillway channels and pipes:
Decant system:
D ivereion ditches:
19
20
*Cracking or crushing of pipes
Spillway pipes:
Decant system:
Trash racks clear and in place:
Yee o
Yee o
Yes o
Yee o
Yes o
Yea
Yee N
Yes
Yea
Yes
Yea ®°
Yes o
Yee N
]S.S feet
N/A
N/A
N/A
/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
feet
Yes ® N/A
Yea No
Yes ~ N A
Yee No
Yes No
Yes ~ N A
Yee No /A
Yea No N/A
*Major adverse changes in these items could cause instability and should be reported to
the Engineering Manager and Mine Superintendent for further evaluation. Adverse
conditions noted in these items should normally be described (extent, location, volume,
etc.) in the apace on the back of this sheet.
Ye No
~_ in
Ye No
Yes No
Total = 5.8.1